Head of Mathematics Mastery Primary

The Head of Subject Mathematics (Primary) provides authoritative educational leadership for their programme, under the pan-programme leadership of the AC+ Education Director. The Head of Subject for Mathematics Primary is responsible for the programme’s educational quality and impact across Ark schools and the wider partnership and shares responsibility with Ark Schools colleagues for improving subject outcomes across the network. They will work as an integrated part of an Ark subject leadership team to establish a shared vision for subject excellence that underpins how their programme is understood, implemented and developed, and will work across AC+ to ensure that this vision informs implementation support and the programme’s ongoing evolution.

They will contribute directly to Ark Schools' work to improve subject outcomes across the network, including providing school support and undertaking an agreed allocation of work directed by the Ark Schools' Director of Curriculum and Assessment. They will ensure that insights from this work inform the programme's ongoing development, supporting a live and responsive partnership between Ark Schools and AC+. The Head of Subject (Mathematics Primary) will lead their subject within the Programmes team, keeping the team up to date with educational thinking and coordinating all ongoing programme maintenance, including high-quality assessment writing.

They are also hands‑on, working alongside the design team on curriculum writing, pedagogical quality assurance and coaching of design team members. They will also build the programme’s external profile by sharing its curriculum and pedagogical thinking, contributing to national subject conversations and developing strong advocates for AC+ approaches.

The Head of Subject Mathematics (Primary) will report into Programmes Director. This role is currently operating hybrid working in our West London Office on a permanent/fixed term/temp basis working full time/part time.

1st round interviews will be taking place virtually w/c 16th November 2026 with 2nd round interviews taking place in person on Monday 23rd November 2026.

• Contribute to and implement the organisation’s strategy and mission, working closely with the Product Strategy Director, Education Director and Heads of Product to develop and implement a programme strategy that supports the organisation’s mission, strategic priorities and long‑term sustainability
• Keep abreast of sector and subject developments, legislative changes, research findings and innovative practice relevant to their subject on a national and international level, working with the Expert Advisory Council to stay connected to the wider subject community
• Lead the strategic design and ongoing development of the Mathematics Mastery Primary curriculum, ensuring that it is ambitious, coherent, carefully sequenced, inclusive and responsive to developments in curriculum, assessment and the wider education landscape
• Ensure that inclusion‑first principles are embedded across curriculum, assessment, professional development and implementation support, enabling all pupils, including those with SEND, lower prior attainment or English as an additional language, to access an ambitious mathematics curriculum
• Work closely with the Head of Subject for Mathematics Mastery Secondary to strengthen coherence, progression and shared educational approaches across the primary and secondary mathematics programmes
• Establish and facilitate regular Subject Panels, recording and sharing outcomes in line with agreed structures, and maintain a rigorous understanding of the implementation, impact and perceptions of their programme through subject panels, assessment outcomes, school…